Tuning-fork crystal units
Sub-miniature tuning-fork crystal units & sub-miniature real-time clock modules
3-D photolithographic processing of crystal chips
Miniaturizing crystal chips with a conventional structure (left image) reduces the area of the electrodes (indicated in red).
Fabricating the chips with an H-groove structure provides a larger electrode area and raises electrolytic efficiency. This design enables miniaturized crystal with CI values as low as those on ordinary-sized crystals (right image).
The CI value of a crystal fabricated using QMEMS technology, however, remains constant, at a level equivalent to that of conventional crystals, even as crystal size decreases.
Some of our most popular sub-miniature tuning-fork crystal units & sub-miniature real-time clock modules
kHz range crystal units
Crystal oscillators
SPXO
RTC modules
RX8900CE
3.2×2.5×1.0t (mm) Max.
RX8130CE
3.2×2.5×1.0t (mm) Max.
RX-4574LC
3.6×2.8×1.2t (mm) Max.
RX-4571LC
3.6×2.8×1.2t (mm) Max.